Henry Moseley was born on November 23, 1887.
He used x-ray spectums to determine atomic numbers
Henry I was born on January 31, 1550.
'''Henry Gwyn Jeffreys Moseley''' (23 November 1887 to 10 August 1915) was an English physicist. Moseley's outstanding contribution to the science of physicswas the justification from physical laws...
he was born 1570